Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Este fío arquivouse. Faga unha nova pregunta se precisa axuda.

How to detect x-frame-options when loading a website in iframe

Naresh Gunda
Naresh Gunda
more options

Loading external website in an iframe is getting blocked because of x-frame-options in response headers. I want to detect what is the value for x-frame-options and based on that value i want to show an alert to the user. How can we detect/extract x-frame-options from the response headers for the given url even if it has redirects?

Loading external website in an iframe is getting blocked because of '''x-frame-options''' in response headers. I want to detect what is the value for '''x-frame-options''' and based on that value i want to show an alert to the user. '''How can we detect/extract x-frame-options from the response headers''' for the given url even if it has redirects?

Naresh Gunda modificouno o

All Replies (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

I'm not sure under what conditions you want to check this like you have a website that allows to embed such content or you want to do this locally.

There is an extension for Firefox that allows this.

Naresh Gunda
Naresh Gunda Question owner
more options

I want to do it programmatically as i don't want end user to go to settings and disable enhanced tracking protection or installing some extensions in order to work with embeded content. So if i'm able to detect the x-frame-options i can ask user to launch the same url in new window by providing a button(Latest Firefox is doing similarly but i want to handle it in our website so that solution will work across the browsers).

Attached firefox implementation screenshot for reference.

Naresh Gunda modificouno o